| 1. | Toadstools were collected from a range of pure stands of betula and pinus both in britain and the u.s.a .
从英国和美国一系列桦木和松树纯林中收集蕈体。 |
| 2. | We still skim the backwaters of ponds and streams for the seed of betula, acer salix and populus species .
我们仍然要在池塘的静水上和溪流中捞取桦木，槭树、杨、柳等树的种子。 |
| 3. | Modified kraft pulping of birch with black liquor pretreatment
黑液预处理桦木硫酸盐蒸煮 |
| 4. | We prepare a burchen case for t0000
一样采用桦木木盒包装! |
| 5. | Alder trees belong to the birch family
赤杨属于桦木科。 |
| 6. | Birch plywood for aircraft
航空用桦木胶合板 |
| 7. | Betulinic acid methylester
桦木酸甲酯 |
| 8. | Sale wood veneer
采购俄罗斯桦木 |
| 9. | Material : solid birch
材料：桦木 |
| 10. | He experiments with a vast range of woods , including baltic birch and black walnut
他还尝试用各种木材来制作，比如桦木和黑胡桃木等。 |
